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    Eagle77pa's Avatar
    Eagle77pa Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Mar 15, 2008, 05:46 PM
    Heater runs continiously
    I have a 7 year old weil mclain heater which suddenly started to run continiously. I have isolated the entire thermostatic wiring system from the boiler, but when I turn the power back on, it fires up. Bad relay? Please advise. Thanks, I don't really have the cash for outside service. Thanks for any help I may get Let me repeat. I have disconnected the entire thermostat circuit fron the heater. The problem lies within the heater electronics. The thermostat leads coming fron the heater are "open" Still runs continiously.
    razor96's Avatar
    razor96 Posts: 87, Reputation: 8
    Junior Member
    		  
    #2

    Mar 15, 2008, 06:15 PM
    1 aw not a heating pro but, ir could be the thermostat itself checking wiring is good but it won't matter if the actual thermostat no longer works
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